Download User manual F850

User's manual
Pressurized
enclosure system
F 850S
Software version 2.05 - manual rev.1
F 850S
Table of contents
Page 2
° Contents
1
1.1
1.2
2
GENERAL ........................................................................................................................................................3
General safety guidelines .............................................................................................................................3
Safety Guidelines for explosion proofed devices .........................................................................................4
INTRODUCTION: PRESSURIZED ENCLOSURE SYSTEM F 850S .............................................................5
2.1
Explosion protection: pressurized enclosure................................................................................................5
2.2
Pressurized enclosure system according EN50016, second release (5/1996) ...........................................5
2.3
Pressurized enclosure system F 850S .........................................................................................................5
2.3.1
Mode pressurization using leakage compensation ...............................................................................5
2.3.2
Mode pressurization using Continuous flow..........................................................................................6
2.3.3
F 850S -Application using „Containment Systems“...............................................................................7
2.4
Peripherals....................................................................................................................................................7
2.4.1
Operating panels ...................................................................................................................................7
2.4.2
Disconnector unit SR852 and SR853 ...................................................................................................7
3
INSTALLATION AND CONNECTION.............................................................................................................8
3.1
Mounting .......................................................................................................................................................8
3.1.1
Control unit FS 850S .............................................................................................................................8
3.1.2
Solenoid valves .....................................................................................................................................8
3.1.3
Operating panels BT 8xx.x ....................................................................................................................8
3.1.4
Disconnector unit SR 852......................................................................................................................8
3.2
Connecting and Commissioning...................................................................................................................9
3.2.1
Terminal description FS 850S .............................................................................................................10
3.2.2
Commissioning and parameter defaults..............................................................................................10
3.2.3
Reset ...................................................................................................................................................11
3.2.4
Purging process...................................................................................................................................11
3.3
Maintenance ...............................................................................................................................................11
3.4
Repairs........................................................................................................................................................11
4
OPERATION ..................................................................................................................................................12
4.1
Display ........................................................................................................................................................12
4.2
Keyboard.....................................................................................................................................................12
4.3
How to enter and leave the bypass mode ..................................................................................................13
4.4
Indications during normal operation ...........................................................................................................14
4.5
Configuration ..............................................................................................................................................14
4.5.1
The menu structure .............................................................................................................................14
4.5.2
Description of the menu items.............................................................................................................15
4.5.3
Configuration Example ........................................................................................................................16
4.6
Alarm and malfunction indications..............................................................................................................19
5
FLOW CHARTS.............................................................................................................................................20
6
APPENDIX .....................................................................................................................................................25
6.1
6.2
6.3
6.4
6.5
Tables .........................................................................................................................................................25
Technical Details ........................................................................................................................................25
Block diagrams ...........................................................................................................................................26
Dimensions .................................................................................................................................................27
List of Parameters.......................................................................................................................................28
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phone: +49 (6321) 49919-0; fax: -41
Email: [email protected]
F 850S
Safety Guidelines
Page 3
1 General
The symbols WARNING, CAUTION, NOTE
This symbol warns of a serious hazard. Failure to observe this warning may result in
death or the destruction of property.
This symbol warns of a possible failure. Failure to observe this caution may result in the total
failure of the device or the system or plant to which it is connected.
This symbol highlights important information.
1.1 General safety guidelines
To ensure safe and reliable operation, the notes and warnings contained in
this manual must be observed.
Caution, this device uses mains voltage! Failure to observe these warnings
may result in serious personal injury or damage to property.
The commissioning of this device may only be carried out by technically
qualified personnel who must observe local safety regulations.
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F 850S
2 Introduction: Pressurized enclosure system F 850S
Page 4
1.2 Safety Guidelines for explosion proofed devices
Application and Standards
This instruction manual applies to explosion protected control panels of type of protection types
below. This apparatus is only to be used as defined and meets requirements of EN 60 079 particularly EN60 079-14 "electrical apparatus for potentiality explosive atmospheres". It can be used
in hazardous locations which are hazardous due to gases and vapours according to the explosion group and temperature class as stipulated on the type label. When installing and operating
the explosion protected distribution and control panels the respective nationally valid regulations
and requirements are to be observed.
General Instructions
Work on electrical installations and apparatus in operation is generally forbidden in hazardous locations, with the exception of intrinsically safe circuits. In special cases work can be done on nonintrinsically safe circuits, on the condition that during the duration of such work no explosive atmosphere exists. Only explosion protected certified measuring instruments may be used to ensure that the apparatus is voltage-free. Grounding and short circuiting may only be carried out, if
there is no explosion hazard at the grounding or short circuit connection.
The control panel has to have a back-up fuse as stipulated. The mains connection must have a
sufficient short circuit current to ensure safe breaking of the fuse. To achieve an impeccable and
safety device operation, please take care for adept transportation, storage and mounting, as well
as accurate service and maintenance. Operation of this device should only be implemented by
authorised persons and in strict accordance with local safety standards.
The electrical data on the type label and if applicable, the "special conditions" of the test certificate DMT 99 ATEX E 003 is to be observed.
!
For outdoor installation it is recommended to protect the explosion protected distribution and control panel against direct climatic influence, e.g. with a protective roof. The maximum ambient
temperature is 40°C, if not stipulated otherwise.
Terminal compartment in Increased Safety
When closing, it is to be ensured that the gaskets of the terminal compartment remain effective,
thus maintaining degree of protection IP 54 to DIN 40 050. Unused entries are to be closed off by
impactproof stopping plugs, which are secured against self-loosening and turning.
Maintenance Work
The gaskets of EEx e- enclosures are to be checked for damages and replaced, if required. Terminals, especially in the EEx e chamber are to be tightened. Possible changes in colour point to
increased temperature. Cable glands, stopping plugs and flanges are to be tested for tightness
and secure fitting.
Intrinsically Safe Circuits
Erection instructions in the testing certificates of intrinsically safe apparatus are to be observed.
The electrical safety values stipulated on the type label must not be exceeded in the intrinsically
safe circuit. When interconnecting intrinsically safe circuits it is to be tested, whether a voltage
and/or current addition occurs. The intrinsic safety of interconnected circuits is to be ensured.
(EN 60079-14, section 12)
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Email: [email protected]
F 850S
2 Introduction: Pressurized enclosure system F 850S
Page 5
2 Introduction: Pressurized enclosure system F 850S
2.1 Explosion protection: pressurized enclosure
The use of pressurized enclosures allows the operation of ‘non explosion protected’ devices in
hazardous areas inside zone 1 and zone 2. The protection type ‘pressurisation’ is based on the
principle of maintaining a constant pressure using air or a protective gas to prevent an explosive
mixture forming near the device inside the pressurized enclosure.
Before start-up, the pressurized enclosure must be purged with air or protective gas to remove
any explosive mixture that may be inside the enclosure.
2.2 Pressurized enclosure system according EN50016, second release (5/1996)
According EN50016 second release from May 1996 is only those pressurized enclosure system
allowed, which is safety examined according EN 954-1.
The FS 850 S reaches the category 3 according EN 954-1 [4] (single fault evaluation). That
means that a single arbitrary fault can occur without losing the safety functionality.
2.3 Pressurized enclosure system F 850S
The pressurized enclosure system F 850S contains at least the control unit FS 850S and a solenoid valve. Each can be mounted in- or outside the enclosure. Furthermore several remote controls (operation panels) are available to improve ease of operation. It is also possible to connect
intrinsically safe sensors to the control unit FS 850S.
The pressurized enclosure system F 850S operates in two different modes: Pressurization using
leakage compensation and Pressurization using continuous flow of protective gas.
2.3.1 Mode pressurization using leakage compensation
After purging, the control unit FS 850S holds the pressure inside the enclosure at a minimum of
0,8 mbar. Two different solenoid vale techniques are available: digital working solenoid valve
(DSV) technique or proportional working solenoid valve (PSV) technique.
a) Digital solenoid valve technique
While purging, the DSV is activated and a large amount of purge medium flows inside the enclosure through a nozzle with a large cross-section. After purging, the control unit turns off the DSV.
The leakage compensation is made by a bypass choke, with a very small adjustable crosssection (diameter 0,3 ...1 mm), inside the valve. The protective medium that flows into the enclosure now is adequate to maintain a pressure of at least 0,8 mbar. The pressure is monitored by
the control unit FS 850S. The maximum and minimum pressure of the enclosure is programmable.
For purging, a traditional and a new integrating method are available:
1. Using the traditional method the purge quantity is a product of a pre-set minimum of flow
rate and time. The flow rate depends on the size of the internal nozzle (diameter 1 ...6 mm)
of the valve and can be specified by matched charts. The common rule of purging must be
considered: let in minus leakage loss is bigger than flow minimum. This purging method is
called as time based purging method.
2. In contrast to the traditional one the integrating purging method measures the real volume flow through the enclosure outlet and adds it up to get the real purge volume. Also, the
flow rate is monitored, depending on the size of the plate orifice of the control unit. If the
flow rate sinks below its minimum, it will be ignored and it will not contribute to volume integration. Therefore we achieve a safe and economical purging method. See also Figure_1.
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F 850S
2 Introduction: Pressurized enclosure system F 850S
Page 6
Pressure inside the enclosure will be observed by each purging method.
The digital solenoid valve technique has a considerable disadvantage: during purging process
and normal operation, a constant rate of protective gas is needed. For safety reasons the rate
must be larger than leakage rate of the enclosure. Wasting protective gas causes high costs in
many applications.
Figure 1: Consumption of protective gas
b) Proportional solenoid valve technique
Using proportional solenoid valve technique prevents unnecessary wasting protective gas. The
internal proportional working sensory equipment and a proportional valve as actuator are combined to a pressure feedback control system.
The benefits of pressure feedback control are:
1. Considerable less consumption of protective gas - additional costs for proportional valve
will be amortised soon
2. Increased service reliability achieved by constant pressure inside enclosure - increasing
leakage caused by e.g. ageing of the enclosure will be balanced and sudden failure is prevented
3. Almost no flow noise and only a small protective gas consumption using a solid enclosure
Another advantage using a proportional solenoid valve is; that pressure control is also used during purging. A set-point pressure will be achieved in the enclosure, while the flow volume, that
leaves the enclosure, will be recorded and integrated through time, until the required purge volume is achieved. Advantages of this method are:
1. A definite pressure while purging - pressure sensitive parts of the enclosure, like membrane
switch panels or windows, will not be overloaded.
2. Purge volume accuracy is achieved by integration of the purge medium flow volume at the
outlet. Wasting purge medium is no more a topic of today.
2.3.2 Mode pressurization using Continuous flow
The control unit FS 850S incorporates the operation mode „continuous flow“. This operation
mode is necessary, for example if an analyser produces an explosive atmosphere inside the enclosure (containment system). The operation mode continuous flow flushes the enclosure permanently. After the (pre-) purging procedure (purging process) a set-point flow rate is adjusted during normal operation. The monitored flow rate minimum is adjustable. The continuous flow operation mode can be realised using 2 digital solenoid valves as well as using one proportional solenoid valve.
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phone: +49 (6321) 49919-0; fax: -41
Email: [email protected]
F 850S
2 Introduction: Pressurized enclosure system F 850S
Page 7
2.3.3 F 850S -Application using „Containment Systems“
„Containment Systems“ are defined as parts of a device within a pressurized enclosure, which
could emit combustible gas (or occasionally an explosive environment: zone 1, explosive mixture)
from within the enclosure.
In order to receive an EEx p-System including a „Containment System“, which is failsafe according EN 50016, with the attribute 'no emission', the following conditions must be met:
1. The flammable substance inside the containment system is in the gas or vapour phase
when operating between the specified temperature limits
2. The minimum pressure specified for pressurized enclosure is at least 50 Pa higher than the
maximum pressure specified for the containment system
3. An automatic safety device initiates, if the pressure difference falls below 50 Pa.
This automatic safety device can be activated by a difference pressure switch, looped into the external alarm loop (terminal 4/10 on FS 850S). If an alarm occurs on this loop, the control device
FS 850S will turn off the ignition-capable device immediately. After alarm cancelling the control
device FS 850S starts operation automatically with the purging procedure. The external alarm
loop is made by a normal closed connection method.
2.4 Peripherals
2.4.1 Operating panels
For the control unit FS 850S several operating and visualising panels are available. These panels
consist of the explosion protection class 'intrinsically safe' and are considerably advantageous,
particularly when the control unit is mounted inside the enclosure.
1. Common operating panels: BT 854.1 and BT 855.1 with
• On/Off-Switch
• Key-operated switch for bypass
• LED-indicator for READY and ON
The connection to the control unit consists of 6 wires.
2. Intelligent operating panel type BT 851
This operation panel indicates operation and malfunction reports as plain text. The 4 membrane
switches offer total command of the control unit. Status, momentary pressure, flow rate as well as
remaining purge time are always available.
The connection to the control unit consists of only 3 wires.
2.4.2 Disconnector unit SR852 and SR853
According to EN 50016 all non- intrinsically safe connections of the ignition capable apparatus
must be disconnect, if the protection gas pressure falls below the safety limit. In many applications more than the two connector terminals on the control unit FS 850S are needed. In these
cases the disconnector unit SR 852, with 8 respectively 16 galvanically separated connectors, is
considerable helpful.
The S853 provides a switching power of 250V , 16 A.
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Email: [email protected]
F 850S
3 Installation
Page 8
3 Installation and connection
This Chapter contains important steps for mounting, connecting and starting.
3.1 Mounting
3.1.1 Control unit FS 850S
The control unit FS 850S can be placed inside a hazardous area. The location (inside or outside
the enclosure) as well as the position is almost arbitrary. Only intake and outlet of the control unit
should be lined up on a horizontal axis. See also Figure 12 in the Appendix.
The control unit has 4 holes on the rear plate for mounting, although fixing only with the screw
connection of intake or outlet is sufficient.
The solenoid valve(s) and the control unit (respectively
pressure monitor) should be mounted on the enclosure
as far away from each other as possible (E.g. space diagonal arrangement), to achieve a total purging.
Observe local safety guidelines and the regulative DIN
EN 60079-14.
3.1.2 Solenoid valves
The solenoid valves can be mounted inside or outside the enclosure. For mounting position see
manufacturer's guide.
3.1.3 Operating panels BT 8xx.x
° Operating panel BT 851.0
The Operating panel BT 851.0 is mounted, without rear plate, directly on the enclosure. For
mounting and bushing of the wire, several holes must be made. For location and drill size see
Figure 13: Dimensions and template BT 851in appendix.
° Operating panel BT 851.5
The operating panel BT 851.5 has housing with environment protection IP 65. It can be located
anywhere in hazardous area zone 1. For location and drill size see Figure 13: Dimensions and
template in appendix.
° Operating panel BT 814.x
The operating manual BT 814.x consists only of 2 LEDs and an ON/OFF-switch, directly fixed on
the enclosure. The BT 814.1 has an additional key-operated switch for bypass. For location and
drill size see Figure 14: Dimensions BT 855, template BT 854 in appendix.
° Operating panel BT 815.x
The operating panel BT 815.5 has housing with environment protection IP 65. It can be located
anywhere in hazardous area zone 1. For location and drill size see Figure 14: Dimensions BT
855, template BT 854 in appendix.
3.1.4 Disconnector unit SR 852
The disconnector unit SR 852 can be mounted and operated in hazardous area zone 1. It represents an Ex-e terminal box.
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F 850S
3 Installation
Page 9
3.2 Connecting and Commissioning
After mounting, connect the 'intrinsically safe' peripherals to terminal 1-10, and the power supply,
valves and ignition-capable apparatus to increased safety terminals of the control unit.
LINE VOLTAGE !
Extreme caution is advised when handling this device.
High electrical discharge is possible and can be fatal.
Please note the following Standard of Compliance:
DMT 99 ATEX E 003 and the regulative DIN EN 60079-14.
Do not exceed terminal safety limits of each terminal.
See limits in technical details or declarations of conformity.
Figure 2: Blockdiagram FS850S
If the BT854.1 or BT855.1 operator panel is being used, the bypass function
can be activated via an external key switch. In this case set the bypass code
to 9999 to prevent a secondary bypass function by bypass code directly from
the control unit. The key switch is to be connected to terminals 4 and 5 of the
control unit.
If external operation panels BT 81x or additional pressure monitor are not
used, it is possible to connect terminal 4 and 6 of the control unit FS 850S to a
shorting bridge, to enable an automatic switch after purging process.
In this case, the On/Off-function of the far left button on the control unit FS
850S is non- operational.
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F 850S
3 Installation
Page 10
3.2.1 Terminal description FS 850S
Terminal
FS850S BT 85x Description
SR 852
1
2
3
4
5
6
7
8
9
4
10
11,12
13,14
15,16
17,18
19,20
21,22
23,24
25,26
1
2
3
Terminals exclusively for connecting the operating panel BT 851
4
5
6
7
8
9
Terminals of operating panel BT 813, BT 814 and BT 815
External alarm loop (intrinsically safe), opening circuit alarms EEx p-System
and switching off ignition-capable device.
Working current circuit 1
Working current circuit 2
Line voltage, either neutral conductor at AC or minus pole at DC
Line voltage, either outer conductor at AC or plus pole at DC
Terminals for proportional solenoid valve
Terminals for additional digital solenoid valve 2
Terminals for digital solenoid valve 1
Terminals for solenoid valve fuse inside FS 850S
+
+ ,+,+,-
3.2.2 Commissioning and parameter defaults
The following parameters are pre-set after connecting the FS850S to mains supply:
Structure
Codes
Pressure
and
flow
Parameter
Display
Text
Mode: leakage compensation
Purging method: time based
Type of valve: digital
Main menu (M-Code)
Bypass (By-Code)
On/Off-Code (On/Off-C.)
0001
0002
0000
The setting 0000 disables the
coding (not in the case of M
code)
The setting 9999 switches off
bypass by coding
10 [min]
time based purging method
selected
500 [l]
integ. purging method se1 [l/s]
lected
0,5 [l/s]
time based purging meth.
2,0 [l/s]
selected
0,8 [mbar] operation mode continuous
15 [mbar] flow selected
10 [mbar]
2 [mbar] proportional solenoid valve
selected
Purging time
00-10-00
Purging volume
Min. flow while purging
Min. flow while operating
Flow set-point
Min. pressure inside enclosure
Max. press. inside enclosure
Set-point press. while purging
Set-point press. while operating
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500.0
1.0
0.5
2.0
0.8
15.0
10.0
2.0
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Comment
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3 Installation
Page 11
3.2.3 Reset
Press red bottom (ENTER-Button)* while switching on
the control unit FS 850S to reset all parameters to the
values in table above.
*: used only on control unit FS 850S.
RESET
3.2.4 Purging process
The control unit FS 850S starts the purging process immediately after start up, providing the programmed minimal pressure (minimum 0.8 mbar) is present. Parallel to pressure monitoring, the
flow rate will be watched, to get a safe purging process.
If the purging flow rate passes its minimum (e.g. temporary shut at the outlet), then the purging
process will be interrupted and the control unit continues purging, after the disturbance is gone.
But if purging pressure exceeds the min or max limits then the purging process will be terminated
and the control unit will start a new purging process automatically after achieving purging condition.
The table below shows the minimum flow rate in accordance of the used plate orifice.
Plate orifice in control unit Minimum flow rate
0,07 liter /sec.
∅ = 4 mm
∅ = 6 mm
0,15 liter/sec.
∅ = 10 mm
0,35 liter/sec.
∅ = 14 mm
0,85 liter/sec.
∅ = 18 mm
1,25 liter/sec.
3.3 Maintenance
Depending upon purity of the assigned purging air the inlet and outlet opening of the FS850S must regularly on
impurities (e.g. oil, dust, etc) or corrosion to be examined. In case of serious impurities the operator should
weigh the possibility of a punctual appropriate cleaning by Gönnheimer Elektronic GmbH in relation to a spontaneous loss of the controller.
3.4 Repairs
Repairs of the controller as well as the accessories may be made only by the Gönnheimer Elektronic GmbH.
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F 850S
4 Operation
Page 12
4 Operation
The user has total control of the purging system F 850S by the use of 4 keys on the control unit
FS 850S respectively by using the external operating panel BT 851. Operation on control unit FS
850S panel BT 851 is equal. Using the other operating panels only a restricted operation is possible.
4.1 Display
The built-in display indicates operation modes, present pressure or flow rate data, as well as malfunction.
4.2 Keyboard
The four multi-functional keys have different meanings and functions depend on the present operation mode.
Key
Ein/Aus
„Shift right“button
BYPASS
Mode
Function
normal operation
Toggles the ignition-capable device on and off, if purging
system state is ready
running menu
Shift cursor one position right.
normal operation
Activates Bypass.
Fire certificate required !
„Up“-button
running menu
INFO /P/Q/T
normal operation
„Down“-button
MENU
„Enter“-button
running menu
normal operation
running menu
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Get menu next item
Changes indication of the display: present pressure, flow
rate, remaining purge time respectively purge volume and
present state of the purging system
Get previous menu item
Executes main menu
Initiates and confirms parameter input
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4 Operation
Page 13
4.3 How to enter and leave the bypass mode
Utilise bypass only, if it is sure that no explosive atmosphere is inside
the cabinet!
Fire certificate required !
The bypass mode is denied, if it is possible that a explosive atmosphere can arise inside the EEx p- housing !
The origin state is normal operation, the EEx p housing can be purged, unpurged or while purging. The steps shown below are according to the control device FS850 not to the operation panel BI851.x.
If you have a operation panel BT81x.1 use the key switch instead.
By-CODE
0002
The bypass code is needed
The ex works Bypass code is ‘0002’.
Enter is right code using the arrow keys and confirm with the ENTER- key.
Bypass
Or
On
The bypass mode is now active.
If the control unit is set to “automatic on” the display shows “bypass” and
“On” alternately and the relay contacts (Ter. 11,12 and 13,14) are closed.
Now you can toggle the relay contacts by pressing the “right-“ button. Remark: if the E/A- code is unequal to zero, you must enter them each time
you want to change the relay contacts state.
Leave the bypass mode in the same way as enter.
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4 Operation
Page 14
4.4 Indications during normal operation
The info-indication shows the present state of the purging system. In addition to this indication, it
is possible to select current pressure-, flow rate-, or remaining purge time- indication. See below:
Figure 3 Flow chart: state of purging system and corresponding display
4.5 Configuration
You must configure and enter the parameters of the control unit FS850S to achieve a desired
mode of operation. All parameters of the control unit are structured in form of a menu. See also
the flow charts in chapter 5.
4.5.1 The menu structure
Main menu
Language
Structure
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The main menu is sub-divided into 4 separate categories:
•
•
•
•
Language
Structure
Parameters
Codes
These are the 5 languages available:
•
•
•
•
•
German
English
French
Dutch
Spanish
Selecting a purging system structure with the following alternatives:
•
•
•
•
•
Operation mode leakage compensation or continuous flow
Using digital or proportional solenoid valves
Integration or time based purging method
Using an additional pressure monitor
Using the disconnector unit SR852
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F 850S
4 Operation
Parameters
This category contains the necessary parameters depending on the structure defined above. Examples for parameters are:
•
•
•
•
Codes
Page 15
Purging time
Minimum flow while purging process
Minimum pressure
Maximum pressure
The control unit has 3 different code words:
• M-Code: to enter main menu
• By-Code: to activate Bypass
• E/A-Code: to switch ignition-capable apparatus on or off
The FS850S does not working during running main menu.
- That means the solenoid valves and the ignition capable
device inside the cabinet are switched off.
4.5.2 Description of the menu items
The display of the control unit has only 8 digits. For this purpose the names of the structures and
parameters are often abbreviations.
In the following table below are some explanations of the menu items. The table as a reference
guide for programming the desired system structure and to set the appropriate parameters correctly. The menu items are roughly sorted by class.
Please note that the viewable conditions of parameters are not included. The category ‘Language’ is also excluded, because of it's simplicity.
See also the corresponding flow charts in section 5.
Hierachy
1.Level
Structure
2.Level
3.Level
Valves
P-Valve
D-Valve
Integra.
Integ. Y
Integ. N.
Cont.Flow
C. Flow Y.
C. Flow N.
Param.
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Pur. Time
...............................
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Description, Explanation
Selecting 'valves’ on level 2 means
that a proportional solenoid valve
or a
digital solenoid valve is available
on level 3
Integration purging method, Yes
Configures integration purging
method.
Integration Purging method, No
Selects time based purging method.
Continuous Flow, Yes
Activates the operation mode ‘continuous flow'.
Continuous Flow, No
Activates the operation mode ‘leakage compensation’.
Purge time - Enter a fixed purge
time in h/min/sec. The purge time
only appears, if the time based
purging method is chosen.
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4 Operation
Codes
Page 16
Pur. Vol.
................................
Min.Fl. P.
................................
Min.Fl .O.
................................
Minimum flow rate during operating
Rated Fl.
................................
Min.Pres.
................................
Max.Pres.
................................
R. Pre. Pu.
................................
Rated Pr.
................................
M-Code
................................
By-Code
...............................
On/Off-C.
................................
Flow rate set-point - In operation
mode ‘continuous flow’ this flow
rate will be regulated, while normal
operation.
Minimum pressure inside enclosure
Only values above ≥ 0.8 mbar can
be entered. (Additional safety regulativ to EN 50016)
Maximum pressure inside enclosure
Maximum pressure ≤ 18 mbar
Pressure set-point during purging,
This pressure value will be regulated during purging process.
Pressure set-point during normal
operation,
This pressure value will be regulated during normal operation.
Menu code - Code word to enter
main menu out of operation mode.
The M-code could not switched of
by setting
M-Code =„0000“ .
Bypass code - Code word to activate the bypass.
The bypass code word can be
switched off by setting „0000“. The
bypass code „9999“ blocks the
bypass function. In that case a bypass can only be activated by keyoperated switch on BT 81x.
On/ Off code, enables switching on
or off the ignition-capable device.
The On/Off code word can be
switched off with „0000“.
Purge volume - The purge volume
only appears, if integration purging
method is chosen.
Minimum flow rate during purging
process
4.5.3 Configuration Example
ExampleEEx p-System
⇒ Enclosure volume: 500 l
⇒ Language : English
⇒ Structure :
• Operation mode: leakage compensation
• Integration purging method
• Proportional solenoid valve
⇒ Parameters
• Purging volume: 2500 l
• Minimum pressure of enclosure: 0.8 mbar
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F 850S
4 Operation
Page 17
• Maximum pressure of enclosure: 12 mbar
• Set-point pressure purging process: 10 mbar
• Set-point pressure normal operation: 1.5 mbar
⇒ Codes
• M- Code: 0001
• By-Code: 0002
• E/A-Code: 0000 (switch off)
Procedure:
Press the Enter-button to start main menu. The control unit calls for the
M-code to be entered.
M-Code
The ex works M-code is ‘0001’.
Press the Enter-button to insert M-Code.
_000
Display shows ‘0000’, the far left digit is flashing.
Press the key sequence on the left side
to enter code ‘0001’,
0001
(the present M-Code).
Confirm the code input pressing Enter-button
Sprache
The main menu is now active. The first sub menu ‘Language’ appears
on the display. The default language of ex works is German.
To alter the language, press Enter.
Deutsch
On the left appears the word ‘Deutsch’
Press the Up-button to change the language.
English
The language ‘English’ is now selected.
Press the Enter-key to confirm the change.
Structure
Category ‘Structure’ appears.
Press the Enter-key to configure the EEx p-system structure.
Valves
The first item of the structure menu is the choice of the solenoid valve.
Press the Enter-key to change state.
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F 850S
4 Operation
D-Valve
Page 18
The present state is digital solenoid valve.
Change the state by pressing Up-key -
P-Valve
The new state is now ’Proportional solenoid valve’.
Confirm the change by pressing Enter-key.
Cont.Flow
This item is the operational mode 'continuos flow' or 'leakage compensation'. The ex works state is already 'leakage compensation' therefore:
skip this item by pressing the Up- key.
Param.
The structure menu is now finished. The main menu continues automatically with the pre-selected parameters.
Start the parameter category by pressing the Enter- key.
Pur. Vol.
The first menu item ‘Purging volume’ appears.
Press the Enter- key to enter the desired volume ‘2500 l’.
_00500 l
Expecting a pre-set purging volume of 500 l, the input sequence is as
follows:
00_500 l
002500 l
Confirm the input by pressing the Enter- key.
Min Fl. P.
The minimum flow while purging can be increased for special applications. In this case leave the default
Min.Pres
The desired minimum pressure of 0.8 mbar is already adjusted ex
works. Continue skipping this menu item by pressing the Up- key or
view by pressing the Enter- key.
Now enter the desired value of the maximum pressure. Modify the present parameter as shown above.
Max.Pres.
012.0mbar
The desired maximum pressure is 12.0 mbar.
R. Pre. Pu
The desired set-point pressure during the purging process of 10.0
mbar is already adjusted ex works. Continue passing this menu item by
pressing the up- key.
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F 850S
4 Operation
Page 19
Rated Pre.
The desired set-point pressure during normal operation must be adjusted. Modify the present parameter to 1.5 mbar as shown above.
Codes
The parameter category is now finished. The main menu continuous
automatically with the sub menu codes.
M-Code
Modify M-Code to ‘0001’ as shown above. Please note: the M-Code
cannot be set to ‘0000’.
By-Code
Modify By-Code to ‘0002’ as shown above.
On/Off-C.
Set the On/Off-Code to switch the ignition-capable apparatus on or off
to ‘0000’. This code word is from now on disabled.
End
The main menu settings are now complete.
After pressing the Enter- key, the purging system is in operation state.
4.6 Alarm and malfunction indications
Alarm
Ext.Alar
Error message
Error E.
Error P.
Error F.
Error C.
Gönnheimer Elektronic GmbH
Cause
Actions
The external alarm occurred, i.e. the Fix shorting bridge to terminal 4
external alarm loop is broken. If the and 10 of the control unit FS
external alarm loop is not used, dis- 850S.
able the external alarm loop by a
shorting bridge.
Cause
Remedy
EEPROM Read Error
Stored configuration data is incomplete or corrupt.
Pressure sensor Error
The integrated pressure sensors do Turn FS 850S off. Turn FS 850S
not work properly
on. If the error message occurs
again,
flow sensor Error
then return the control unit FS
The integrated flow sensors do not 850S to Gönnheimer Elektronic.
work properly
Hardware - fault
phone: +49 (6321) 49919-0; fax: -41
Email: [email protected]
F 850S
5 Flow charts
Page 20
5 Flow charts
Figure 4 Flow chart main menu
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F 850S
5 Flow charts
Page 21
Figure 5 Flow chart language menu
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Tel.:(06321) 1 20 31 - 1 20 32
Fax.:(06321) 1 69 73
F 850S
5 Flow charts
Page 22
Figure 6 Flow chart structure category
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phone: +49 (6321) 49919-0; fax: -41
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F 850S
5 Flow charts
Page 23
Figure 7 Flow chart parameter category
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F 850S
5 Flow charts
Page 24
Figure 8 Flow chart code category
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F 850S
6 Annex
Page 25
6 Appendix
6.1 Tables
plate orifice size
Plate orifice
Pressure
[bar]
[105Pa]
1,5
2
2,5
3
3,5
4
4,5
The right diameter of the plate orifice depends upon the desired volume flow rate
on the enclosure outlet and the built in
nozzle of the solenoid valve. Flow rates
into enclosure depend upon primary pressure and nozzle diameter.
Flow rate is about
[m3/h]
0,5 ... 1,1
1,1 ... 2,7
2,5 ... 6,5
6 ... 11
9 ... 15
[mm]
4
6
10
14
18
Flow rate [l/s] ρ Air = 1,293 kg/m3
Nozzle diameter [mm]
0,3
0,5
0,7
1
0,0275 0,076
0,149
0,304
0,0338 0,094
0,184
0,374
0,0391 0,109
0,213
0,433
0,0438 0,0121 0,238
0,484
0,048
0,133
0,261
0,53
0,0518 0,144
0,282
0,573
0,0554 0,154
0,301
0,612
1,5
0,693
0,838
0,968
1,063
1,195
1,28
1,367
2
1,208
1,48
1,708
1,908
2,087
2,252
2,404
3
2,676
3,27
3,759
4,186
4,569
4,917
5,239
4
4,653
5,651
6,471
7,177
7,804
8,37
8,883
5
7,06
8,511
9,685
10,682
11,554
12,33
13,032
6
9,796
11,098
13,199
14,445
15,511
16,441
17,263
6.2 Technical Details
Control unit FS 850S
General
Housing
Electrical
specifications
Mounting
Ex-protection class
Environment protection
Dimensions
Material
Power consumption
Main voltage
Working circuits
Terminal 11, 12, 13,
14
Control circuits
Terminal 1..10
Pneumatic
Mounting
EEx p
Configuration
Pressure range
Flow rate range
Position
Environment temperature
Parameter input
Storage
Gönnheimer Elektronic GmbH
inside hazardous area
E Ex e m [ib] IIC T6
IP 65 (Remark: without outlet drill)
H x W x D: 220 mm x 120 mm x 90 mm
Aluminium, lacquered / Ral 7035
About 2.5 VA (without peripherals)
24VDC, 24VAC, 110VAC, 120VAC, 220VAC, 230VAC
48 ...62 Hz
AC:
U ≤ 250VAC, I ≤ 5A at cos ϕ > 0,7
DC:
U ≤ 30 VDC, I ≤ 5 A, P ≤ 150 W
Ex protection class: intrinsically safe E Ex ib IIC
see declaration of conformity for further details
DMT 99 ATEX E 003
0 ... 18 mbar
3
0,5.. 15 m /h, dependent upon plate orifice size
position independent, only intake and outlet of the control unit
should be lined up on a horizontal axis.
-10°C ...+50°C at T6
-10°C ...+60°C at T4
LC-Display, menu guided
Different languages : German, English, French, Dutch, Spanish
by EEPROM double saved with CRC
Tel.:(06321) 1 20 31 - 1 20 32
Fax.:(06321) 1 69 73
F 850S
6 Annex
Page 26
6.3 Block diagrams
Figure 9 Electrical block diagram
Figure 10 Pneumatic block diagram
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F 850S
6 Annex
Page 27
6.4 Dimensions
Figure 11: Dimensions FS 850S
Figure 12: Mounting examples
Figure 13: Dimensions and template BT 851
Figure 14: Dimensions BT 855, template BT 854
Figure 15: Dimensions digital solenoid valve
Gönnheimer Elektronic GmbH
Figure 16: Dimensions proportional solenoid valve
phone: +49 (6321) 49919-0; fax: -41
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F 850S
6 Annex
Page 28
6.5 List of Parameters
System identification
Installation no.:
Date:
FS 850S. .
Production no.:
Solenoid valve
Inputs
Description
Language
F850S language
Display
Value/ state
Language
Structure
Valve Solenoid valve type used with
this purging system?
Valves
P-Valve
D-Valve
‰
‰
Integ. Y.
Integ. N.
‰
‰
C. Flow Y.
C. Flow N,
‰
‰
Tick box
Purging Time based purging method
method (Integ N.) or integration purging
method (Integ. Y.)
N.)
Cont. Flow
Tick box
Purge time
Pur. Time
Purge volume
Codes
Integra.
Tick box
Operational Continuous flow (C. flow Y.) or
mode leakage compensation (C. flow
Parameters
Pur. Vol.
Minimum flow rate during purging procedure
Min. Fl. P.
Minimum flow rate during normal operation by op. mode
continuous flow
Set-point flow rate by operation
mode continuous flow
Min.Fl. O.
Pressure monitor,
minimum pressure
Min. Pres.
Pressure monitor,
maximum pressure
Max. Pres
Set-point pressure during purging
R. Pre. Pu.
Set-point pressure during normal operation
Rated Pr.
Code for main menu
M-Code
Code for bypass
By-Code
Code to enable switching ignition-capable device
On/Off-C.
Gönnheimer Elektronic GmbH
BT 8
Rated Fl.
phone: +49 (6321) 49919-0; fax: -41
Email: [email protected]
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